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petroleum-industry
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Gidelines of Executing the Petroleum Industry Vision in Iran (N.I.O.C)
, M.Sc. Thesis Sharif University of Technology ; Sharifian, Mohammad Ali (Supervisor) ; Mobini Dehkordi, Ali (Supervisor)
Abstract
Iran is a country with bright cultural and historical background, and rich natural resources. It is also one of the important oil and gas exporters with a special geographical situation. The world energy needs are increasing rapidly and that requires higher oil production. On the other hand, oil is Iran’s most important source of revenue and the country is highly dependent on oil export. Islamic republic of Iran’s (I.R.I) 1404 program is visioning the country to be the first producer of material in the region, the second producer of oil in OPEC, and the third producer of gas in the world. Although critical conditions can slow down the process to achieve the vision, implementing this vision...
Nanofluid-assisted gas to hydrate (GTH) energy conversion for promoting CO 2 recovery and sequestration processes in the petroleum industry
, Article Petroleum Science and Technology ; Volume 34, Issue 1 , 2016 , Pages 37-43 ; 10916466 (ISSN) ; Montazeri, V ; Sharif University of Technology
Taylor and Francis Inc
2016
Abstract
In this work the enhancement of gas to hydrate conversion employing the nanographene oxide (NGO)-based nanofluid regarding CO2 capture and sequestration recovery is investigated. A new series of experiments are carried out at different pressures, temperatures, agitation intensities and NGO promoter concentrations by using a newly developed fully automated GTH (gas to hydrate) energy converter. According to the presented results at the 3 MPa and 275.15 K and in the presence of 30 ppm NGO, it is possible to reach a CO2 gas to hydrate conversion of 95% at a low impeller speed in less than 2.5 h, which is quite interesting from an energy consumption standpoint. The presented approach can have...
Performance evaluation of a new nanocomposite polymer gel for water shutoff in petroleum reservoirs
, Article Journal of Dispersion Science and Technology ; 2018 ; 01932691 (ISSN) ; Ayatollahi, S ; ZareNezhad, B ; Sharif University of Technology
Taylor and Francis Inc
2018
Abstract
A new polymer gel nanocomposite is fabricated for excess water production control (water shut off) in petroleum reservoirs and its rheological behavior is evaluated in the presence of sea water and formation water at the temperature of 100 °C. It is shown that at a high salinity without using SiO2 nanoparticles, the elastic modulus of synthesized polymer gel in the presence of sea water and formation water are 12.5 Pa and 9.8 Pa respectively. However by incorporation of SiO2 nanoparticles in the polymer gel matrix, the elastic modulus of synthesized polymer gel in the presence of sea water and formation water can be improved to 13.56 Pa and 11.57 Pa respectively, which is quite interesting...
Performance evaluation of a new nanocomposite polymer gel for water shutoff in petroleum reservoirs
, Article Journal of Dispersion Science and Technology ; Volume 40, Issue 10 , 2019 , Pages 1479-1487 ; 01932691 (ISSN) ; Ayatollahi, S ; ZareNezhad, B ; Sharif University of Technology
Taylor and Francis Inc
2019
Abstract
A new polymer gel nanocomposite is fabricated for excess water production control (water shut off) in petroleum reservoirs and its rheological behavior is evaluated in the presence of sea water and formation water at the temperature of 100 °C. It is shown that at a high salinity without using SiO2 nanoparticles, the elastic modulus of synthesized polymer gel in the presence of sea water and formation water are 12.5 Pa and 9.8 Pa respectively. However by incorporation of SiO2 nanoparticles in the polymer gel matrix, the elastic modulus of synthesized polymer gel in the presence of sea water and formation water can be improved to 13.56 Pa and 11.57 Pa respectively, which is quite interesting...
A modified method for detection of interface and onset point in the asphaltenic fluids
, Article Energy Sources, Part A: Recovery, Utilization and Environmental Effects ; 2020 ; Bayat Shahparast, M ; Barzegar, F ; Sharif University of Technology
Taylor and Francis Inc
2020
Abstract
Asphaltene precipitation and deposition causes many serious problems to the petroleum industry from the reservoir to the surface facilities. Therefore, it is important to bring it under control by finding a method to accelerate or slow down its precipitation and deposition. For achieving this purpose two parameters play an important role; onset point of the precipitation and amount of the deposited phase. When asphaltene precipitates, it is capable of depositing in the solution. After the deposition, the solution split into two phases; asphaltene-rich and asphaltene-lean. Determining the amount of the deposited phase needs to distinguish the interface between two phases. In this study, a...
Effect of nanoclay on improved rheology properties of polyacrylamide solutions used in enhanced oil recovery
, Article Journal of Petroleum Exploration and Production Technology ; Volume 5, Issue 2 , June , 2015 , Pages 189-196 ; 21900558 (ISSN) ; Khalili Nezhad, S. S ; Kamari, M ; Hemmati, M ; Masihi, M ; Bazgir, S ; Sharif University of Technology
Springer Verlag
2015
Abstract
Recently, a renewed interest arises in the application of nanotechnology for the upstream petroleum industry. In particular, adding nanoparticles to fluids may drastically benefit enhanced oil recovery (EOR) and improve well drilling, by changing the properties of the fluid, rocks wettability alteration, advanced drag reduction, strengthening the sand consolidation, reducing the interfacial tension and increasing the mobility of the capillary trapped oil. In this study, we focus on roles of clay nano-particles on polymer viscosity. Polymer-flooding schemes for recovering residual oil have been in general less than satisfactory due to loss of chemical components by adsorption on reservoir...
Investigating the effect of heterogeneity on infill wells
, Article Journal of Petroleum Exploration and Production Technology ; Volume 6, Issue 3 , 2016 , Pages 451-463 ; 21900558 (ISSN) ; Masihi, M ; Sharif University of Technology
Springer Verlag
2016
Abstract
In recent years, improving oil recovery (IOR) has become an important subject for the petroleum industry. One IOR method is infill drilling, which improves hydrocarbon recovery from virgin zones of the reservoir. Determining the appropriate location for the infill wells is very challenging and greatly depends on different factors such as the reservoir heterogeneity. This study aims to investigate the effect of reservoir heterogeneity on the location of infill well. In order to characterize the effect of heterogeneity on infill well locations, some geostatistical methods, e.g., sequential gaussian simulation, have been applied to generate various heterogeneity models. In particular, different...
High molecular weight polyacrylamide nanoparticles prepared by inverse emulsion polymerization: reaction conditions-properties relationships
, Article Colloid and Polymer Science ; Volume 294, Issue 3 , 2016 , Pages 513-525 ; 0303402X (ISSN) ; Ramazani S. A ; Shaban, M ; Ayatollahi, S ; Tomovska, R ; Sharif University of Technology
Springer Verlag
2016
Abstract
High molecular weight polyacrylamide (PAM) nanoparticle dispersions are products with wide application possibilities, the most important of which is in petroleum industry such as drilling fluid and flooding agent in enhanced oil recovery. For that aim, it is necessary to achieve complete control of the final dispersion and polymer properties during the synthesis step. In this work, PAMs were synthesized by inverse emulsion polymerization of aqueous acrylamide solution in cyclohexane in the presence of emulsifier mixture of Span 20 and Span 80. We present a comprehensive study of the effects of variation of all important reaction conditions (agitation rate, reaction time and temperature,...
Partial equilibrium modelling of world crude oil demand, supply and price
, Article Energy Systems ; Volume 8, Issue 1 , 2017 , Pages 217-226 ; 18683967 (ISSN) ; Most, D ; Ookouomi Noutchie, S. C ; Sharif University of Technology
Springer Verlag
2017
Abstract
Oil production strategies define to a large extent the future of the world crude oil market. This paper aims at modelling the long-term world crude oil supply and demand, as well as the global oil price. The main assumption is that non-OPEC and OPEC oil producers act as price-taker and strategic players respectively. The world crude oil demand is modelled as a linear price dependent function. We compare four scenarios to diagnose the OPEC’s supply behaviour: “cartel”, “oligopoly”, “mixed-cartel” and “mixed-oligopoly”. A Mixed Complementarity Problem, MCP, is used to find the Nash equilibrium point of each game scenario. The OPEC countries maximize their individual total discounted profits in...
On the development of a nonlinear time-domain numerical method for describing vortex-induced vibration and wake interference of two cylinders using experimental results
, Article Nonlinear Dynamics ; 2021 ; 0924090X (ISSN) ; Day, S ; Karimirad, M ; Khorasanchi, M ; Sharif University of Technology
Springer Science and Business Media B.V
2021
Abstract
A nonlinear mathematical model is developed in the time domain to simulate the behaviour of two identical flexibly mounted cylinders in tandem while undergoing vortex-induced vibration (VIV). Subsequently, the model is validated and modified against experimental results. Placing an array of bluff bodies in proximity frequently happens in different engineering fields. Chimney stacks, power transmission lines and oil production risers are few engineering structures that may be impacted by VIV. The coinciding of the vibration frequency with the structure natural frequency could have destructive consequences. The main objective of this study is to provide a symplectic and reliable model capable...
Solar generated steam injection in HAMCA, Venezuelan extra heavy oil reservoir; Simulation study for oil recovery performance, economical and environmental feasibilities
, Article EUROPEC 2015, 1 June 2015 through 4 June 2015 ; 2015 , Pages 1176-1202 ; 9781510811621 (ISBN) ; Ayatollahi, S ; Bashtani, F ; Romero, C ; Sharif University of Technology
Society of Petroleum Engineers
2015
Abstract
Application of solar energy compared to conventional gas-burning boilers for steam generation in thermal Enhanced Oil Recovery processes is a newly attended technology, which brings significant benefits to the petroleum industry through environmental and economical aspects. This technique is especially designed for the regions in which gas-burning steam generation is not viable in large scale. The objective of this study is to investigate about viability of using solar energy to generate steam instead of using conventional steam generators in a Venezuelan extra heavy oil reservoir. Limited gas production policy of the Venezuelan government is the major challenge for utilizing gas steam...
Experimental investigation of self-repeating effect of different nanoparticles on internal mud cake formation by water-based drilling fluid in directional wells
, Article Drilling Technology Conference 2016, 22 August 2016 through 24 August 2016 ; 2016 ; 9781613994504 (ISBN) ; Shahbazi, K ; Ghazanfari, M. H ; Zargar, G ; Sharif University of Technology
Society of Petroleum Engineers
Abstract
In this paper, the impact of three parameters including nanoparticles geometry, particles aggregation and borehole inclination on induced formation damage from water based drilling fluids were investigated by means of experimental studies. Accordingly, we designed a dynamic filtration setup capable to rotate and change well inclination. Nano-based drilling fluids consisting of spherical, cubical and tubular shapes nanoparticles as fluid loss additives were used. Mud cake quality, core permeability impairment and degree of formation damage at various well inclinations were examined. The cluster structure of aggregated particles were determined using fractal theory and applying dynamic light...
Activating solution gas drive as an extra oil production mechanism after carbonated water injection
, Article Chinese Journal of Chemical Engineering ; Volume 28, Issue 11 , 2020 , Pages 2938-2945 ; Ayatollahi, S ; Riazi, M ; Sharif University of Technology
Materials China
2020
Abstract
Enhanced oil recovery (EOR) methods are mostly based on different phenomena taking place at the interfaces between fluid–fluid and rock–fluid phases. Over the last decade, carbonated water injection (CWI) has been considered as one of the multi-objective EOR techniques to store CO2 in the hydrocarbon bearing formations as well as improving oil recovery efficiency. During CWI process, as the reservoir pressure declines, the dissolved CO2 in the oil phase evolves and gas nucleation phenomenon would occur. As a result, it can lead to oil saturation restoration and subsequently, oil displacement due to the hysteresis effect. At this condition, CO2 would act as in-situ dissolved gas into the oil...
Fabrication of a highly efficient new nanocomposite polymer gel for controlling the excess water production in petroleum reservoirs and increasing the performance of enhanced oil recovery processes
, Article Chinese Journal of Chemical Engineering ; Volume 32 , 2021 , Pages 385-392 ; 10049541 (ISSN) ; Ayatollahi, S ; ZareNezhad, B ; Sharif University of Technology
Materials China
2021
Abstract
A new nanocomposite polymer gel is synthesized for reduction of excess water production in petroleum reservoirs at real operating conditions. This new nanocomposite gel contains SiO2 nanoparticles, partially hydrolyzed polyacrylamide (HPAM) and chromium triacetate. High pressure and high temperature tests using porous carbonate core are carried out to evaluate the effects of nanoparticles on the synthesized polymer gel performance. It is shown that the residual resistance factor ratio of water to oil using the synthesized polymer gel nanocomposite in this work is much higher than that of the ordinary polymer gels. The presented results confirm the high performance of the synthesized...
Super gas wet and gas wet rock surface: state-of- the art evaluation through contact angle analysis
, Article Petroleum ; 2021 ; 24056561 (ISSN) ; Dehghan Monfared, A ; Shayegh, F ; Barzegar, F ; Ghazanfari, M. H ; Sharif University of Technology
KeAi Communications Co
2021
Abstract
Recently, super gas wet and gas wet surfaces have been extensively attended in petroleum industry, as supported by the increasing number of publications in the last decade related to wettability alteration in gas condensate reservoirs. In many cases, contact angle measurement has been employed to assess the wettability alteration. Even though contact angle measurement seems to be a straightforward approach, there exist many misuses of this technique and consequently misinterpretation of the corresponding results. In this regard, a critical inspection of the most recent updated concepts and the intervening parameters in the contact angle based wettability evaluation of liquid-solid-gas...
Biodiesel production from sunflower oil using k2co3 impregnated kaolin novel solid base catalyst
, Article JAOCS, Journal of the American Oil Chemists' Society ; Volume 98, Issue 6 , 2021 , Pages 633-642 ; 0003021X (ISSN) ; Kazemeini, M ; Rahmani, M. H ; Zehtab Salmasi, M ; Sharif University of Technology
John Wiley and Sons Inc
2021
Abstract
Kaolin clay material was loaded with potassium carbonate by impregnation method as a novel, effective, and economically heterogeneous catalyst for biodiesel production of sunflower oil via the transesterification reaction. The structural and chemical properties of the produced catalysts were characterized through several analyses including the X-ray diffraction, scanning electron microscopy, Fourier-transform infrared spectroscopy, and Brunauer–Emmett–Teller specific surface area. These revealed the best catalyst for the investigated reaction among different ones prepared based upon various impregnation extent of the potassium carbonate. The influence of this parameter was examined through a...
Optimal selection of an integrated produced water treatment system in the upstream of oil industry
, Article Process Safety and Environmental Protection ; Volume 117 , 2018 , Pages 67-81 ; 09575820 (ISSN) ; Roshandel, R ; Shayegan, J ; Sharif University of Technology
Institution of Chemical Engineers
2018
Abstract
Produced water (PW), water extracted along with oil, can cause important environmental challenges due to its high volume and salinity and is considered a key factor in the economic exploitation of oil fields. Therefore, making use of a cost-effective integrated system of wastewater treatment is a fundamental requirement in oil and gas industries. In this paper, the integrated PW treatment system is presented using superstructure-based mathematical optimisation methodology which is aimed at minimising the total annual cost. Two distinct scenarios of injection and reuse in industrial scale are considered to propose an efficient and optimal integrated system. The results show that, despite the...
Mechanistic study to investigate the effects of different gas injection scenarios on the rate of asphaltene deposition: An experimental approach
, Article Fuel ; Volume 262 , 2020 ; Zanganeh, P ; Kord, S ; Ayatollahi, S ; Amiri, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
Asphaltene deposition during enhanced oil recovery (EOR) processes is one of the most problematic challenges in the petroleum industry, potentially resulting in flow blockage. Our understanding of the deposition mechanism with emphasis on the rate of the asphaltene deposition is still in its infancy and must be developed through a range of experiments and modelling studies. This study aims to investigate the rate of asphaltene deposition through a visual study under different gas injection scenarios. To visualise the asphaltene deposition, a high-pressure setup was designed and constructed, which enables us to record high-quality images of the deposition process over time. Present research...
Phosphomolybdic acid/graphene oxide as novel green catalyst using for biodiesel production from waste cooking oil via electrolysis method: optimization using with response surface methodology (RSM)
, Article Fuel ; Volume 287 , March , 2021 ; Tahvildari, K ; Hemmati, A ; Aberoomand azar, P ; Safekordi, A ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
In this study, biodiesel (FAME) was prepared using a novel heterogeneous catalyst of phosphomolybdic acid (H3PMo12O40, HPMo)/support graphene oxide (GO). The characterization of the catalyst was evaluated by SEM, EDX, Map analysis, TEM, FT-IR, and Raman analyses. The production of biodiesel from waste cooking oil (WCO) was carried out by the electrolysis method. The process of the trans-esterification reaction was optimized by applying the response surface methodology (RSM) based on the central composite design (CCD) approach. The effects of four independent variables of methanol to oil molar ratio (6–12 mol:mol), catalyst weight (0.5–1.5 wt%), time (8–24 h), and voltage (30–70 V) were...
Direct insights into the pore-scale mechanism of low-salinity waterflooding in carbonates using a novel calcite microfluidic chip
, Article Fuel ; Volume 260 , 15 January , 2020 ; Mahani, H ; Sharif University of Technology
Elsevier Ltd
2020
Abstract
One of the key open questions in the area of low or controlled salinity water flooding (LSWF or CSWF) is how the observed oil recovery at macro-scale (e.g. Darcy or core-scale) can the explained and what underlying microscopic mechanisms drive it. Thus far, the micromodel investigation of LSWF has been limited to sandstones, remaining challenging to apply to carbonates. In this paper we aim to i) extend the capability to fabricate a novel calcite micromodel using Iceland spar calcite crystal, ii) investigate the pore-scale mechanisms leading to oil recovery from carbonates. A target crude oil-brine-rock (COBR) system was first selected. To screen potential brines which can produce...